CN201035813Y - DC speed governing system traning cabinet - Google Patents
DC speed governing system traning cabinet Download PDFInfo
- Publication number
- CN201035813Y CN201035813Y CNU2007200214398U CN200720021439U CN201035813Y CN 201035813 Y CN201035813 Y CN 201035813Y CN U2007200214398 U CNU2007200214398 U CN U2007200214398U CN 200720021439 U CN200720021439 U CN 200720021439U CN 201035813 Y CN201035813 Y CN 201035813Y
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- circuit
- direct current
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- regulator
- cabinet
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Abstract
The utility model discloses a practice and training cabinet of a direct current speed controlling system. The practice and training cabinet solves the problems that at present, the lack of teaching and technique assessment equipment of a direct current speed controlling system causes that teaching effect is not good, students are uneasy to master the direct current speed controlling technology, and the technique assessment is uneasy to grasp, etc., and the utility model has the advantages that the structure is simple, the operation is convenient, and the mastering of the direct current speed controlling technology is easy, etc. The practice and training cabinet has the structure that the practice and training cabinet comprises at least a cabinet, wherein, an operation device is arranged on the door body of the cabinet, a mounting frame is arranged in the cabinet, a weak current control circuit module, a representative signal test area, an operating mode switching circuit mounting rack, a relay control main module mounting rack, and a thyristor main module mounting rack are arranged on the front surface of the frame in sequence, a transformer and a motor device are arranged at the bottom of the cabinet, a fault setting switch and a fault box are arranged on the back surface of the mounting frame, and the operation device, the transformer, the fault setting switch, the fault box and the motor device are electrically connected with direct current speed controlling circuits which are arranged on each mounting rack.
Description
Technical field
The utility model relates to a kind of teaching equipment, relates in particular to a kind of Direct Current Governor System real training cabinet.
Background technology
During present vocational technology teaching and technical ability are identified, lack can be convenient and safe the teaching equipment that carries out Direct Current Governor System training and examination, therefore the student can not well grasp the DC speed regulation technology, influenced teaching efficiency, and when identifying, the examiner is difficult for holding examination process, form and complexity, and also identifying to technical ability has increased difficulty.
Summary of the invention
The purpose of this utility model is exactly to lack Direct Current Governor System teaching and technical ability evaluation apparatus at present in order to solve, cause teaching efficiency not good, the student is difficult for grasping the DC speed regulation technology, technical ability is identified problems such as being difficult for assurance, provide a kind of have simple in structure, easy to use, the Direct Current Governor System real training cabinet of advantages such as the DC speed regulation technology that is easy to grasp.
For achieving the above object, the utility model adopts following technical scheme:
A kind of Direct Current Governor System real training cabinet, it comprises at least one rack, the door body of rack is provided with operating means, be provided with installation frame in the described rack, the framework front is followed successively by weak control circuit module-type signal test section-duty commutation circuit erecting frame from top to bottom, relay control primary module erecting frame, thyristor rectifier primary module erecting frame, transformer and electric machine are installed in bottom at rack, the installation frame reverse side is provided with fault switch and fault box, operating means is set, transformer, fault is provided with switch, fault box and electric machine are electrically connected with DC speed regulation control circuit on being arranged on each erecting frame.
Described rack is the detachable engagement connection in four sides, and the operating means of door body comprises D.C. voltmeter, DC ammeter, torque indicator, tachometer gage and weak control circuit module controls switch, thyristor rectifier primary module gauge tap, given control knob, given potentiometer, power supply, malfunction indicator lamp.
Described DC speed regulation control circuit consists of, weak control circuit is connected with scr rectification circuit, scr rectification circuit is connected with electric machine by transformer, scr rectification circuit is by current transformer and current feedback circuit and closed loop circuit of weak control circuit composition simultaneously, electric machine is then formed closed loop circuit by speed feedback circuit and weak control circuit, two closed loop circuits can be respectively with the single closed loop of analog quantity, the two closed-loop controls of two closed loops of analog quantity and digital quantity, control relay circuit with then be connected with scr rectification circuit with weak control circuit respectively.
Described electric machine comprises direct current motor, direct current dynamometer or Dyn., the DC tachometer generator of coaxial connection, and the reactor that is connected with direct current motor.
Described weak control circuit consists of, and it has given circuit, regulator I, regulator II, the trigger circuit of series connection successively, and current feedback circuit is connected with the input end of regulator II, and the speed feedback circuit is connected with the input end of regulator I.
Described scr rectification circuit is MTC thyristor module or discrete thyristor components and parts.
Described control relay circuit is provided with circuit and duty commutation circuit for comprising power circuit, synchronizing circuit, fault, wherein power circuit is connected with given circuit, regulator I, regulator II respectively, synchronizing circuit then is connected with trigger circuit, it is the breakdown switch circuit that fault is provided with circuit, it is provided with switch with fault and is connected with the fault box, the duty commutation circuit is the relay and the gauge tap thereof of a pair of interlocking, and divided ring, closed loop and single closed loop, two closed-loop working state are switched.
Described given circuit, regulator I, regulator II, trigger circuit and scr rectification circuit are provided with a plurality of type signal test points, finish the measurement of the exemplary voltages of governor circuit.
Direct Current Governor System real training cabinet of the present utility model is a cabinet body structure, and whole control or separate module control structure are adopted in control, and wherein the module of discrete control structure comprises: given circuit, adjuster circuit, trigger circuit, buffer circuit; And whole control structure is that above-mentioned each module is integrated into a plank; Rectification main circuit adopts MTC thyristor module or discrete thyristor components and parts; Main circuit adopts three-phase rectifier transformer step-down and three-phase full-controlled bridge rectifier structure; Direct Current Governor System real training cabinet internal circuit configuration is three kinds, is respectively the single closed loop of analog quantity, the two closed loops of analog quantity and the two closed loop controlling structures of digital quantity; The positive layout be weak control circuit-type signal test section part-duty commutation circuit, relay control main circuit, thyristor rectifier main circuit from top to bottom in the cabinet, is the direct current motor-direct current dynamometer or the Dyn.-DC tachometer generator group of rectifier transformer, reactor and coaxial connection below; Have on the switch board guidance panel: D.C. voltmeter, DC ammeter, torque indicator, tachometer gage and other devices such as gauge tap that should be equipped with;
The beneficial effects of the utility model are:
1) can be used for Special Technique Training training and technical ability examinations such as maintenance electrician, electrical engineering, power electronics, electromechanics;
2) simple in structure, easy to operate, be easy to grasp;
3) concrete achievable problem has: direct current generator open loop speed governing, DC generator speed feedback closed-loop drive, the single closed-loop drive of direct current generator current feedback, the two closed-loop drives of direct current generator, the training of relay control main circuit distribution, direct current generator operating characteristic and measuring mechanical characteristics.
Description of drawings
Fig. 1 is real training cabinet one-piece construction figure;
Fig. 2 is a real training cabinet inner structure synoptic diagram;
Fig. 3 is the DC speed regulation circuit block diagram;
Fig. 4 is a DC speed regulation circuit electrical schematic diagram.
Wherein, 1; rack, 2; the door body; 3; installation frame, 4; weak control circuit-type signal test section-duty commutation circuit module erecting frame, 5; relay control primary module erecting frame; 6; thyristor rectifier primary module erecting frame, 7; weak control circuit, 8; scr rectification circuit; 9; control relay circuit; 10; current transformer, 11; current feedback circuit, 12; the speed feedback circuit; 13; electric machine; 14; given circuit, 15; regulator I, 16; regulator II; 17; trigger circuit; 18; power circuit, 19; synchronizing circuit, 20; holding circuit; 21; fault is provided with circuit, and 22; the duty commutation circuit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, Fig. 2, the door body 2 of rack 1 is provided with operating means, be provided with installation frame 3 in it, the framework front is followed successively by weak control circuit module-type signal test section-duty commutation circuit erecting frame 4, relay control primary module erecting frame 5, thyristor rectifier primary module erecting frame 6 from top to bottom.Transformer and electric machine 13 are installed in bottom at rack 1, installation frame 3 reverse side are provided with fault switch and fault box are set, and the DC speed regulation control circuit on operating means, transformer, fault are provided with switch, fault box and electric machine 13 and are arranged on each erecting frame is electrically connected.The four sides of rack 1 is detachable engagement connection, and the operating means of door body 2 comprises D.C. voltmeter, DC ammeter, torque indicator, tachometer gage and weak control circuit module controls switch, thyristor rectifier primary module gauge tap, given control knob, given potentiometer, power supply, malfunction indicator lamp.
Fig. 3, among Fig. 4, the DC speed regulation control circuit consists of, weak control circuit 7 is connected with scr rectification circuit 8, scr rectification circuit 8 is connected with electric machine 13 by transformer, scr rectification circuit 8 is formed a closed loop circuit by current transformer 10 and current feedback circuit 11 with weak control circuit 7 simultaneously, 13 of electric machines pass through speed feedback circuit 12 and form closed loop circuits with weak control circuit 7, two closed loop circuits can be respectively with the single closed loop of analog quantity, the two closed-loop controls of two closed loops of analog quantity and digital quantity, control relay circuit 9 be connected with scr rectification circuit 8 with weak control circuit 7 respectively.
Also be provided with a plurality of type signal test points on given circuit 14, regulator I15, regulator II16, trigger circuit 17 and the scr rectification circuit 8, finish the measurement of the exemplary voltages of governor circuit.
Claims (8)
1. Direct Current Governor System real training cabinet, it comprises at least one rack (1), the door body (2) of rack (1) is provided with operating means, it is characterized in that: be provided with installation frame (3) in the described rack (1), the framework front is followed successively by weak control circuit module-type signal test section-duty commutation circuit erecting frame (4) from top to bottom, relay control primary module erecting frame (5), thyristor rectifier primary module erecting frame (6), transformer and electric machine are installed in bottom at rack (1), installation frame (3) reverse side is provided with fault switch and fault box, operating means is set, transformer, fault is provided with switch, fault box and electric machine (13) are electrically connected with DC speed regulation control circuit on being arranged on each erecting frame.
2. Direct Current Governor System real training cabinet according to claim 1, it is characterized in that: described rack (1) is the detachable engagement connection in four sides, and the operating means of door body (2) comprises D.C. voltmeter, DC ammeter, torque indicator, tachometer gage and weak control circuit module controls switch, thyristor rectifier primary module gauge tap, given control knob, given potentiometer, power supply, malfunction indicator lamp.
3. Direct Current Governor System real training cabinet according to claim 1, it is characterized in that: described DC speed regulation control circuit consists of, weak control circuit (7) is connected with scr rectification circuit (8), scr rectification circuit (8) is connected with electric machine (13) by transformer, scr rectification circuit (8) is formed a closed loop circuit by current transformer (10) and current feedback circuit (11) with weak control circuit (7) simultaneously, electric machine (13) is then formed closed loop circuit by speed feedback circuit (12) and weak control circuit (7), two closed loop circuits can be respectively with the single closed loop of analog quantity, the two closed-loop controls of two closed loops of analog quantity and digital quantity, control relay circuit (9) with then be connected with scr rectification circuit (8) with weak control circuit (7) respectively.
4. Direct Current Governor System real training cabinet according to claim 1, it is characterized in that: described electric machine (13) comprises direct current motor, direct current dynamometer or Dyn., the DC tachometer generator of coaxial connection, and the reactor that is connected with direct current motor.
5. Direct Current Governor System real training cabinet according to claim 3, it is characterized in that: described weak control circuit (7) consists of, it has given circuit (14), regulator I (15), regulator II (16), the trigger circuit (17) of series connection successively, current feedback circuit (11) is connected with the input end of regulator II (16), and speed feedback circuit (12) is connected with the input end of regulator I (15).
6. Direct Current Governor System real training cabinet according to claim 3 is characterized in that: described scr rectification circuit (8) is MTC thyristor module or discrete thyristor components and parts.
7. according to claim 3 or 5 described Direct Current Governor System real training cabinets, it is characterized in that: described control relay circuit (9) is for comprising power circuit (18), synchronizing circuit (19), fault is provided with circuit and duty commutation circuit, wherein power circuit (18) respectively with given circuit (14), regulator I (15), regulator II (16) connects, synchronizing circuit (19) then is connected with trigger circuit (17), it is the breakdown switch circuit that fault is provided with circuit, it is provided with switch with fault and is connected with the fault box, the duty commutation circuit is the relay and the gauge tap thereof of a pair of interlocking, divided ring, closed loop and single closed loop, two closed-loop working state are switched.
8. according to claim 3 or 5 described Direct Current Governor System real training cabinets, it is characterized in that: described given circuit (14), regulator I (15), regulator II (16), trigger circuit (17) and scr rectification circuit (8) are provided with a plurality of type signal test points, finish the measurement of the exemplary voltages of governor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200214398U CN201035813Y (en) | 2007-04-25 | 2007-04-25 | DC speed governing system traning cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200214398U CN201035813Y (en) | 2007-04-25 | 2007-04-25 | DC speed governing system traning cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201035813Y true CN201035813Y (en) | 2008-03-12 |
Family
ID=39196704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200214398U Expired - Fee Related CN201035813Y (en) | 2007-04-25 | 2007-04-25 | DC speed governing system traning cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201035813Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054077A (en) * | 2016-07-08 | 2016-10-26 | 珠海格力电器股份有限公司 | Speed regulation voltage switching circuit and power strip |
| CN109256026A (en) * | 2018-11-21 | 2019-01-22 | 北京理工大学 | A kind of experiment device for teaching of Double Closed-loop DC Speed System |
| CN110211472A (en) * | 2019-04-26 | 2019-09-06 | 浙江大学 | The integrated system and method for middle duty DC speed regulation serial experiment |
-
2007
- 2007-04-25 CN CNU2007200214398U patent/CN201035813Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054077A (en) * | 2016-07-08 | 2016-10-26 | 珠海格力电器股份有限公司 | Speed regulation voltage switching circuit and power strip |
| CN109256026A (en) * | 2018-11-21 | 2019-01-22 | 北京理工大学 | A kind of experiment device for teaching of Double Closed-loop DC Speed System |
| CN110211472A (en) * | 2019-04-26 | 2019-09-06 | 浙江大学 | The integrated system and method for middle duty DC speed regulation serial experiment |
| CN110211472B (en) * | 2019-04-26 | 2021-06-25 | 浙江大学 | Integrated system and method for middle-duty DC speed regulation series experiment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080312 |